body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    color: #333;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 80%;
    max-width: 800px;
}

.section {
    display: none;
    background: white;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 8px;
    width: 100%;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.section.active {
    display: block;
}

form {
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    border: 1px solid #ccc;
    background: white;
    border-radius: 8px;
}

input[type="text"], select {
    width: 100%;
    padding: 10px;
    margin-top: 8px;
    margin-bottom: 20px;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

button {
    width: 100%;
    background-color: #4CAF50;
    color: white;
    padding: 14px 20px;
    margin: 8px 0;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    background-color: #45a049;
}